
<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8" />
    <style>
        * {
            margin: 0;
            padding: 0;
            overflow: hidden;
        }
    </style>
</head>

<body>
    <script type="importmap">
        {
            "imports": {
                "three": "./three/build/three.module.js",
                "three/addons/": "./three/examples/jsm/"
            }
        }
    </script>


    <script type="module">
        import * as THREE from 'three';
        import { OrbitControls } from 'three/addons/controls/OrbitControls.js';

        // 场景
        const scene = new THREE.Scene();// 创建场景
        const geometry = new THREE.BoxGeometry(5, 5, 5);
        const material = new THREE.MeshBasicMaterial({ color: 0xff0000 }); //材质 
        for (let i = 0; i < 10; i++) {
            for (let j = 0; j < 10; j++) {
                for (let k = 0; k < 10; k++) {
                    const mesh = new THREE.Mesh(geometry, material); //网格模型对象Mesh
                    mesh.position.set(i * 20, k * 20, j * 20);
                    scene.add(mesh); //网格模型添加到场景中  
                }
            }
        }

        // AxesHelper
        const axesHelper = new THREE.AxesHelper(150);
        scene.add(axesHelper);

        // 相机
        const camera = new THREE.PerspectiveCamera();  //相机
        camera.position.set(500, 500, 500); //相机位置
        camera.lookAt(0, 50, 0);   //相机观察位置

        // 渲染器
        const renderer = new THREE.WebGLRenderer(); // 创建渲染器
        renderer.setSize(window.innerWidth, window.innerHeight); //渲染区域
        renderer.render(scene, camera); //执行渲染
        document.body.appendChild(renderer.domElement);


        // 设置相机控件轨道控制器OrbitControls
        const controls = new OrbitControls(camera, renderer.domElement);
        // 如果OrbitControls改变了相机参数，重新调用渲染器渲染三维场景
        controls.addEventListener('change', function () {
            renderer.render(scene, camera); //执行渲染操作
            console.log(camera.position)
        });//监听鼠标、键盘事件
    </script>

</body>

</html>